Greenworks 40V 21" Brushless (Smart Pace) Self-Propelled Lawn Mower, 2 x 4Ah USB (Power Bank) Batteries and Charger Included MO40L4413 & 40V (550 CFM / 130 MPH) Brushless Axial Blower, Tool Only

Name: Greenworks 40V 21" Brushless (Smart Pace) Self-Propelled Lawn Mower, 2 x 4Ah USB (Power Bank) Batteries and Charger Included MO40L4413 & 40V (550 CFM / 130 MPH) Brushless Axial Blower, Tool Only
Brand: Greenworks
SKU: MO40L4413

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Greenworks | Battery Powered Self-Propelled Lawn Mowers

AVERAGE

Winnowl Index

Winnowl Verdict

The Greenworks 40V 21" Brushless (Smart Pace) Self-Propelled Lawn Mower with an AVERAGE (71) Winnowl Index is really about buying a brand with Strong Brand Strength. This rating is driven by Greenworks maintaining Average Brand Trust and Average Brand Reliability that strengthens the Average Performance and Fair Value. At $535.95, the price aligns with the $557.27 average; while the Performance is a balance between top and bottom specs; for example the Total Run Time of 70 minutes may mean you should have plenty of power to handle larger yards or overgrown grass that would typically drain a standard battery while the Battery Voltage of 40 V may mean you should effectively maintain blade speed on a tidy, dry lawn that gets mowed on a regular schedule. This is a Safe Bet based on the Strong Brand Strength that is 6% above the average brand.

Market Value Index

Fair

$535.95

Overpriced Fair High Value

The $535.95 price point is right at the $557.27 average, confirming the Fair Value.

Performance Rating

Average

Strengths

Neutrals

Weaknesses

The Average Performance comes from a mix of outcomes; for example, the 70 minutes Total Run Time indicates you should have plenty of power to handle larger yards or overgrown grass that would typically drain a standard battery, though the 40 V Battery Voltage means you should effectively maintain blade speed on a tidy, dry lawn that gets mowed on a regular schedule.

Brand Strength

Strong

Trust

Reliability

Customer Service

Greenworks has Strong Brand Strength, meaning Average Brand Reliability and Average Brand Trust may reduce the post purchase risk.

Available At

$535.95 View Deal

The Winnowl Lab Report

Specification	Value	Rating	Vs. Average	Winnowl Insight
Total Run Time	70 minutes	Strong	25% better	High-endurance rating. Provides a safety buffer for thick grass or larger properties.
Battery Voltage	40 V	Mediocre	34% worse	Standard residential power. Balanced for consistent performance on well-maintained suburban lawns.
Battery Capacity	4 Ah	Mediocre	27% worse	Standard suburban capacity. Balanced for roughly 45-60 minutes of runtime.
Charging Time	120 mins	Mediocre	45% worse	Extended recovery time. Slow recharge speed may delay your ability to finish larger jobs.
Warranty	3 Years	Mediocre	22% worse	Standard residential protection. Covers the machine through the initial years of typical seasonal use.
Number of Batteries	2 count	Average	21% better	Dual-battery loadout. Provides immediate redundancy and extended runtime for larger properties.
Cutting Width	21 inches	Average	2% worse	Standard residential deck width. Balanced for efficiency and maneuverability through most garden gates.
Cutting Height Adjustment	7 settings	Average	3% better	High-precision adjustment rack. Allows for fine-tuning based on grass species and regional moisture levels.

Ranking Factors

Insights

Value Rank: #28 out of 40.
Performance Rank: #32 out of 40.
Winnowl Quadrant: Budget

Strengths

At minutes, the Total Run Time is longer than the class average (55.78 minutes) but not as long as the class maximum (90 minutes).
With batteries, the Number of Batteries is higher than the class average (1.65) but still lower than the most in class (4).

Neutral

A Cutting Width of inches is about average (21.40 inches) but narrower than the widest in class at 26 inches.
A Cutting Height Adjustment of settings is about average (6.80 settings) but not as many as the class max of 10 settings.

Weaknesses

At mins, the Charging Time is slower than the average of 82.65 mins and well below the fastest at (45 mins).
The Years warranty is in the bottom 10%, offering minimal long-term protection.
At V, the voltage is in the bottom 10%, indicating lower power potential than most peers.
Ah is among the lowest capacities in class, ranking in the bottom 10%.

Comparison

Name	Winnowl Index	Value	Performance	Brand	Price	Total Run Time	Battery Voltage	Battery Capacity	Cutting Width	Warranty	Charging Time	Number of Batteries	Cutting Height Adjustment
Greenworks 40V 21" Brushless (Smart Pace) Self-Propelled Lawn Mower	AVERAGE 71	Fair	Average	Strong	$535.95	70 minutes	40 V	4 Ah	21 inches	3 Years	120 mins	2 count	7 settings
Kobalt 80-Volt 21-in Self-propelled Battery Lawn Mower	ELITE 91	Strong	Strong	Exceptional	$599.00	75 minutes	80 V	5 Ah	21 inches	5 Years	60 mins	2 count	7 settings
Greenworks 82V 25” Battery Powered Lawn Mower	STRONG 85	Fair	Strong	Strong	$699.99	90 minutes	82 V	4 Ah	25 inches	4 Years	60 mins	2 count	7 settings
PowerSmart 80V MAX 21" Cordless Lawn Mower	AVERAGE 78	Exceptional	Strong	Average	$329.00	60 minutes	80 V	6 Ah	21 inches	2 Years	90 mins	1 count	5 settings